CVE-2020-28912

2020-12-2400:00:00

ubuntu.com

7 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

4.4 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

0.0004 Low

EPSS

Percentile

11.7%

JSON

With MariaDB running on Windows, when local clients connect to the server
over named pipes, it’s possible for an unprivileged user with an ability to
run code on the server machine to intercept the named pipe connection and
act as a man-in-the-middle, gaining access to all the data passed between
the client and the server, and getting the ability to run SQL commands on
behalf of the connected user. This occurs because of an incorrect security
descriptor. This affects MariaDB Server before 10.1.48, 10.2.x before
10.2.35, 10.3.x before 10.3.26, 10.4.x before 10.4.16, and 10.5.x before
10.5.7. NOTE: this issue exists because certain details of the MariaDB
CVE-2019-2503 fix did not comprehensively address attack variants against
MariaDB. This situation is specific to MariaDB, and thus CVE-2020-28912
does NOT apply to other vendors that were originally affected by
CVE-2019-2503.